Repair-sleeve for fluid-conducting pipes.



No. 732,400. PATENTED JUNE 30, 1903.

DRESSER Gz A. B. HENRY.

REPAIR SLEEVE FOR FLUID CONDUCTING PIPES.

APPLICATION FILED APR. 10, 1903.

N0 MODEL. 1 E 2 SHEETS-SHEET 1..

nmmnnul AE WITNESS s.- INVENTIORS.

BY W (3. 2 9

No. 732,400. PATENTED JUNE-30, 1903.

R. DRESSER R A. B. HENRY. REPAIR SLEEVE'POR FLUID CONDUCTING PIPES.

APPLICATION FILED APR. 10, 1903.

2 SHEETS- 81E331 2 H0 KODEL.

E JV Gill v forcing the end pieces into position causes the wedge-shapedends to force the walls of the groove outwardly against the inner wallsof the recesses a and also inwardly against the pipe. lVe also prefer toform the packing in the grooves a with a like groove in its uppersurface to receive the wedge-shaped projection Z).

In placing our repair device uponpipes when the gas or other fluidpassing through the same is under very high pressure it is verydifiicult to draw the end pieces into position and secure an eifectiveclosing against such pressure. In order to avoid this, we provide thepart A with a vent and a valve for closing the same. The construction ofthis device is best shown in Fig. 4.

The sleeye-section A is provided with an opening 6, communicating withthe recess A \Vithin the recessa groove 6 is formed around the opening 6and the same is filled with packing. The valve F is formed in the shapeof a bolt provided with a head f of disk form, and this is inserted inthe opening e from the inside of the sleeve. considerably smaller thanthe opening, and the head of the same is provided at or near itsperiphery with an upwardlyextending flange to engage the packing. At twoopposite points the head f is provided with outwardly-extendingprojectionsf f for engaging the lugs or projections c e on the interiorof the section A adjacent to the head of the bolt. By loosening the nuton the bolt, forcing the same inwardly and turning it slightly in eitherdirection, the proj ectionsf f are caused to engage two of the lugs 6 cwhich hold the head away from the packing and permit the escape of gasor other fluid from the interior of the sleeve, relieving the ends fromnearly if not all pressure. When the ends have been secured tightly inplace, the bolt F is turned slightly, so that the projections f f aremoved off from the lugs e 6 The pressure within the sleeve will thenseat the head against the packing, and by tightening the nut the head isforced tightly against its packing and the valve permanently closed.

lVhile we have described our device as employcd in the repairing ofgas-pipes, it is obvious that it may be employed for repairing any pipesused for conducting any fluid under pressure.

The outer ends of the grooves a are closed by the gaskets c, whicheffectually prevents any leakage from the interior of the sleeve.

That we claim, and desire to secure by Letters Patent, is-

1. A repair sleeve for fluid conducting pipes, comprising a dividedsleeve for inclosing the pipes, having longitudinally-disposed The bodyof the bolt is 7 packing-grooves, packing for closing the inte rior ofthe said sleeve and the packing-grooves and securing means for saidclosing packing, substantially as described.

2. A repair sleeve for fluidconducting pipes, comprising a dividedsleeve for inclosing the pipe having end recesses andlongitudinallydisposed packing grooves, and means for closing the endrecesses including packing for closing the ends of the saidpacking-grooves, substantially as described.

3. A repair sleeve for fluid conducting pipes, comprising a dividedsleeve for inelosing the pipe, having end recesses and packing-groovesextending longitudinally of the sleeve,said packing-grooves havinginwardlyeurving ends terminating in the inner part of the end recesses,end pieces for closing the end recesses and packing interposed betweenthe end pieces and the inner end of the end recesses whereby the endrecesses and packing-grooves are closed with the minimum amount ofpacking, substantially as described.

4. A repair sleeve for fluid conducting pipes, provided with a vent, ofa pressurevalve for closing the same and means for holding the valveopen while closing the ends of the sleeve, substantially as described.

5. A repair sleeve for fluid conducting pipes, comprising a dividedsleeve and endclosing means, said sleeve being providedwith a vent and apressure-valve for closing the same, means for holding the valve openduring the closing of the ends and means for permanently securing thesaid valve when closed, substantially as described.

6. A repair sleeve for fluid conducting pipes, comprising a sleeveprovided with a vent and a pressure-valve having a disk-like headprovided with outwardly-extending projections, projections on theinterior of the sleeve to engage the projections of the valve and holdthe valve open against the pressure of the fluid within the sleeve,substantially as described.

7. A repair sleeve for fluid conducting pipes, comprising the dividedsleeve, end pieces for securing the ends of the sleeve, the vent in thesleeve and pressure-valve for closing the same, means for holdin gthevalve open when desired and means for permanently securing the valvein closed position, substantially as described.

In testimony whereof we ailix our signatures in the presence of twowitnesses.

S. R. DRESSER. ARTHUR B. HENRY.

Vitnesses:

FRED A. MILLER, J. O. PEARSON.

